Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12136/1963
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Title: Inner morphological and metric characterization of the molar remains from the Montmaurin-La Niche mandible: the Neanderthal signal
Authors: Martínez de Pinillos, Marina
Martín-Francés, Laura
Bermúdez de Castro, José María
García-Campos, Cecilia
Modesto-Mata, Mario
Martinón-Torres, María
Vialet, Amélie
Keywords: European Middle Pleistocene;Human evolution;Neanderthals;micro-CT;EDJ and tissue proportions
Issue Date: Aug-2020
Publisher: Elsevier
Citation: Journal of Human Evolution, 2020, 145, 102739
Abstract: Here, we present a metric and morphological study of the molar remains from the Montmaurin-La Niche mandible by means of microcomputed tomography. According to the last analysis, based on the combination of geomorphological and paleontological data, the level bearing this human mandible probably corresponds to the marine isotope stages (MIS) 7. These data place the Montmaurin-La Niche in a chronologically intermediate position between the Neanderthals and the Middle Pleistocene fossils (e.g., Sima de los Huesos, la Caune de l’Arago). A recent study has revealed that while the mandible is more closely related to the Early and Middle Pleistocene African and Eurasian populations, the morphology of the outer enamel surfaces of its molars is typical of the Neanderthal linage. The data presented here are in line with this finding because the morphology of the enamel-dentine junction of the molars is similar to that of Neanderthals, whereas the absolute and relative enamel thickness values (2D and 3D) are closer to those exhibited by some Early Pleistocene hominins. Moreover, the pulp cavity morphology and proportions are in concordance with the Neanderthal populations. Our results strengthen the hypothesis that the settlement of Europe could be the result of several migrations, at different times, originated from a common source population. Thus, the variability in the European Middle Pleistocene populations (e.g., Montmaurin, Sima de los Huesos, Arago, Mala Balanica) could indicate different migrations at different times and/or population fragmentation, without excluding the possible hybridization between residents and new settlers.
URI: http://hdl.handle.net/20.500.12136/1963
ISSN: 0047-2484
1095-8606
DOI: 10.1016/j.jhevol.2019.102739
Editor version: https://doi.org/10.1016/j.jhevol.2019.102739
Type: Article
Appears in Collections:Paleobiología
Microscopía y Microtomografía Computarizada



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